That's a rather silly exaggeration of what I've said. Some peripherals are proven to be predictive, others aren't. Like, for example... Line drive percentage. It's notoriously fickle and not particularly predictive except over insanely long samples (multiple years). An extreme good LD% and a high BABIP are measuring the *same luck*. If you see his AAA performance as an indication he's ready to be the starting 2b, fine. I think that's defensible.